How do I add a curve to a vertex to bend an edge / face
Use a Bevel (Ctrl + B) on the edges you want to curve. Once you have beveled, select &quot;Custom Profile&quot; from the operator panel that appears, and you can define all aspects of the bevel, including custom curvature. In the example below, I deformed it heavily on purpose just to demonstrate. If you line up your object in front of a reference image, you can replicate the curve precisely.